/*
 * 版权所有 (C) 2015 知启蒙(ZHIQIM) 保留所有权利。[遇见知启蒙，邂逅框架梦]
 * 
 * https://zhiqim.org/project/zhiqim_framework/zhiqim_orm.htm
 *
 * Zhiqim Orm is licensed under Mulan PSL v2.
 * You can use this software according to the terms and conditions of the Mulan PSL v2.
 * You may obtain a copy of Mulan PSL v2 at:
 *          http://license.coscl.org.cn/MulanPSL2
 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND,
 * EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT,
 * MERCHANTABILITY OR FIT FOR A PARTICULAR PURPOSE.
 * See the Mulan PSL v2 for more details.
 */
package org.zhiqim.orm.dbo;

import org.zhiqim.kernel.annotation.AnAlias;
import org.zhiqim.kernel.annotation.AnNew;
import org.zhiqim.kernel.extend.LinkedMapSV;
import org.zhiqim.orm.ORMException;

/**
 * 对象更新器，支持更新字段列表，和查询条件列表
 *
 * @version v1.0.0 @author zouzhigang 2014-3-21 新建与整理
 */
@AnAlias("Updater")
@AnNew
public class Updater extends Conditioner<Updater>
{
    private static final long serialVersionUID = 1L;
    private LinkedMapSV<UpdaterField> fieldMap = new LinkedMapSV<>();
    
    /** 检查有效性 */
    public boolean isValid() throws ORMException
    {
        //完成field
        if (fieldMap.isEmpty() || conditionList.isEmpty())
            return false;
        else
            return true;            
    }
    
    /**
     * 增加适配信息
     * 
     * @param key   适配建
     * @param value 适配值
     * @return      返回本对象
     */
    public Updater addReplace(String key, String value)
    {
        addReplaceInner(key, value);
        return this;
    }
    
    /******************************************************/
    //字段管理
    /******************************************************/
    
    /**
     * 增加更新字段
     * 
     * @param field 更新字段
     */
    public Updater addField(String field, Object value)
    {
        fieldMap.put(field, new UpdaterField(field, value));
        return this;
    }
    
    public Updater addFieldExpression(String field, String expression)
    {
        fieldMap.put(field, new UpdaterField(field, expression, 1));
        return this;
    }
    
    public LinkedMapSV<UpdaterField> getFieldList()
    {
        return fieldMap;
    }
}
